Index.



PATENTED SEPT. 1, 1908.

E. DAVIS.

INDEX APPLICATION FILED NOV. 30, 1906.

UNITED STATES PATENT oEEioE.

EUGENE DAVIS, OF ST. LOUIS, MISSOURI.

INDEX.

To all whom it may concern:

. Be it known that I, EUGENE DAVIS, a citizen of the United States ofAmerica, residing at the city of St. Louis, in the State of Missouri,have invented certain new and useful Improvements in Indexes, of whichthe following is a full, clear, and exact description, reference beinghad to the accompanying drawings, forming part of this specification.

My invention relates to certain improvements in index sheets and indextabs, more particularly intended for use in loose leaf ledgers.

Figure I is a perspective View of a portion .1 of a ledger having myindex sheets and index tabs incorporated therein. Fig. II is an enlargedsection taken on line II-II, Fig. I. Fig. III is an enlarged crosssection taken on line IIIIII, Fig. II. Fig. IV is a perspective view ofone of the index sheets on the same scale as Fig. I. Fig. V is aperspective view of a rivet member. Fig. VI is a per speotive View of afolded binding member. Fig. VII is a perspective View of a folded tabproper. Fig. VIII is a perspective view of a folded shield.

1 designates the sheets of a ledger which may be of any ordinary form.

2 are index sheets. Each index sheet is ruled and preferably bearsletters or other symbols located upon the projecting portion of thesheet.

Referring now to the index tabs which I apply to the index sheets, 4 isthe tab proper which is provided with a sight opening 5 at its rearportion and a forward tongue 6 bent back toward the body of the tabproper and adapted to be bent back further onto the index sheet when thetab is applied thereto. In the rear end of each tab proper areperforations 7. The tab proper may be of metal or other stiff material.

8 is a binding member that is folded centrally and is preferably oftape. The fold of this member is preferably cut out at 9 and one wing ofthe member is provided with perforations 10 that are adapted to registerwith the perforations 7 in the tab proper.

11 is a rivet member, preferably of soft metal that is provided withspurs 12 which are adapted to be passed through the perforations 10 inthe binding member and through the perforations 7 in the tab proper, andthen riveted over onto the tab proper for the purpose of uniting saidparts. After Specification of Letters Patent.

Application filed November 30, 1906.

Patented Sept. 1, 1908.

Serial No. 345,686.

the parts have been thus united the tab in its entirety is in acompleted condition and ready to be applied to the index sheet. Topermit of the ready application of the tab the binding member thereof ispreferably gummed or provided with an adhesive coating which, whenmoistened, will be in a condition to readily adhere to the index sheet.13 is a folded shield of transparent material which is provided at thefold thereof with an opening 14 (see Fig. IV) that will permit of theshield being readily slipped over the tab and onto the index sheet afterthe tab has been applied to such sheet. This shield being of transparentmaterial the symbols or lines upon the index sheet may readily bediscerned therethrough and through the sight'opening 5 in the index taband the cut away portion 9 in the binding member 8, as will be apparent.The tabs are applied to the index sheets in conjunction with thealphabetical or other symbols thereon and opposite such symbols, and thetab upon each individual index sheet is different in color from the tabson the other sheets, in order that the sheets may be readilydistinguished, due to such difference in color. The tabs are alsoprovided with coatings of enamel or analogous substance, in order thatthey shall be free of sharp edges.

I claim 1. In a book index, the combination with a plurality of booksheets, of a plurality of index sheets each projecting beyond the booksheets the whole length thereof, and tabs attached to the margins ofsaid index sheets, substantially as set forth.

2. In a book index, a plurality of index sheets and a lurality of tabs,each of different color an having a wing bent back toward the body ofthe tab, substantially as set forth.

3. A book index tab having a wing bent back toward the body thereof andadapted to be bent back further toward said body, and a gummed bindingmember riveted to said tab, substantially as set forth.

4. A book index tab having a win bent back toward the body thereof andadapted to be bent back further toward said body, and a rivet memberhaving rivets whereby said tab may be riveted to an index sheet,substantially as set forth.

5. In a book index, an index sheet having a marked edge, and a tabhaving a wing bent back toward the body thereof and adapted to be bentback further toward said sheet, substantially as set forth.

6. In a book index, a plurality of index sheets having marked edges toprovide continuous marked lines said index sheet being located betweenthe leaves of the book at intervals, and tabs having wings bent backtoward the bodies thereof and adapted to be bent back further towardsaid sheets, sub stantially as set forth.

7. In a book index, an index sheet, a tabv attached to said sheet, and atransparent shield ap lied to said sheet at the location of said tfb,substantially as set forth,

- tially as set forth.

9. A bookindex tab comprising a tab proper having a sight openingtherein, and a binding member having a sight opening therein,substantially as set forth.

EUGENE DAVIS.

In presence of NELLIE V. ALEXANDER, BLANOHE HOGAN.

